JPH03286448A - Recording/reproducing device - Google Patents

Abstract

PURPOSE:To improve convenience to use for a user by recording erasure permission information or erasure inhibition information into a control data base recording area as the information of a recording medium. CONSTITUTION:Information to designate erasure permission or erasure inhibition for the recording medium 36 of a recording/reproducing device constituted so as to control a program recorded on recording tracks TA, TB by using control data is recorded in the control data recording areas FAVV, FAVA. Then, the recording/reproducing device is controlled into an erasure permitted state or an erasure inhibited state according to this information. Thus, at the time of the setting of the control data at the time when the recording medium 36 is loaded, the user can designate the erasure permission or the erasure inhibition as occasion demands, and the convenience to use for the user is improved still more.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A. Industrial field of application B. Overview of the invention C. Conventional technology Problems to be solved by the invention 1. Means for solving the problem
1 action (Fig. 3, Fig. 5, Fig. 12, Fig. 13, and Fig. 1)
(Figure 4) Overall configuration of G embodiment (G1) video tape recorder (Figure 1) (
G2) Functional blocks of the videotape recorder (Figure 2) (G3) Videotape recording format (Figures 3 to 6) (G4) Setting processing of the videotape recorder (Figures 7 to 11) (G5 > Recording permission/prohibition processing operation (Figures 12 and 13)
Figure) (G6) Other embodiments (Figure 14) H Effects of the invention A Industrial field of application The present invention relates to a recording and reproducing device, and is applied to consumer electronic equipment such as a video tape recorder for recording and reproducing programs. It is suitable for this purpose.

B. Summary of the Invention The present invention provides a recording/reproducing device in which a designation of erasure permission or erasure prohibition status of a program recorded on a recording medium is recorded on the recording medium as erasure permission information or erasure prohibition information, and By erasing or prohibiting erasure of the recorded program on the recording medium based on the permission information or erasure prohibition information, user-friendliness can be further improved.

C. Prior Art Conventional consumer video tape recorders record multiple programs on a longitudinally extending videotape.
A cue signal is recorded at the beginning of each program. For example, when a user wants to play a desired program from a recording tape, the user must first set the video tape recorder to search mode and use the video tape to cue. After fast-forwarding the signal to a position where it can be played back, the user first switches to playback mode and checks whether it is the program he or she wants to watch.

Problem to be Solved by the Invention In this type of video tape recorder, a claw is provided on the casing of the video cassette to prevent accidental erasure, and by breaking this claw, the video cassette can be recorded. Controls are in place to prohibit such activities.

Therefore, even if a video cassette with a broken claw to prevent accidental erasure is loaded into the video tape recorder and an attempt is made to execute the recording mode, the video tape recorder will not start the recording operation.

However, once the nail to prevent accidental erasure is broken and the video cassette is placed in the erasing prohibited state, it is necessary to take the trouble of pasting adhesive tape or the like in place of the broken nail when returning the video cassette to the erasing enabled state. In addition, it was not practical enough, as it was impossible to set the video cassette to an erasing inhibited state while it was still loaded in the video tape recorder main body, without breaking the erroneous erasing prevention claw.

The present invention has been made in consideration of the above points, and aims to propose a recording/reproducing device that can preferentially specify the erasure permission or erasure prohibition state based on the state of the claw for preventing accidental erasure. It is.

Means for Solving EIIu In order to solve this problem, in the present invention, management data I) Av is recorded in the management database recording area FAVV% FAVA provided in the recording tracks TA and TB on the recording medium 36, and the management data In the recording and reproducing apparatus 1 configured as shown in FIG. 2, which manages programs recorded on recording tracks TA and TB using data DAv, erasure permission information or erasure prohibition information A9 is used as information on the recording medium 36 in the management database recording area F AVV. , F AVA, and erase or prohibit erasure of the program on the recording medium 36 based on the erasure permission information or erasure prohibition information A9. The user can load the recording medium 36 by recording the flag A9) in the management data recording area Favv % FAVA of the recording medium 36 and controlling the recording/reloading Wl to the erasure permission or erasure prohibition state based on the information. When setting the management data DAv, you can specify permission or prohibition of deletion as necessary.
This can further improve usability for the user.

G example An embodiment of the present invention will be described in detail below with reference to the drawings.

(Gl) Overall horizontal command of video tape recorder In FIG. 1, 1 indicates a video tape recorder (VTR) as a whole, and a recorded video signal S1 inputted via a video signal processing section 2 is sent to the video tape recorder main body 3. By supplying this, the video signal S2 is recorded, and the reproduced video signal S2 is supplied to the monitor 4 via the video signal processing section 2 as a video output signal S3.

In addition to this, a control management data processing section 5 is provided, and inputs an input/output information signal S4 given from a remote controller 6 to a central processing unit (CPU) 8 for processing control management data via a remote control transmitter/receiver 7. As a result, control information S5 is sent to the bus 9, thereby controlling the video signal processing section 2 and the circuit elements constituting the video tape recorder main body 3, and control information S6 is sent to the video tape recorder main body 3 via the bus 10. A control signal S7 for the mechanism elements constituting the video tape recorder body 3 is generated by communicating with a mechanism control central processing unit (CPU) 11 of the video tape recorder main body 3.

The video signal processing unit 2 selects as input the received video signal Sll received by the tuner 21, the external line video signal S12 supplied from the human power line of the external video signal source, and the internal synchronization signal S13 generated in the internal synchronization circuit 22. The signal is input to the superimpose fader circuit 24 through the circuit 23, and thus the recorded video signal S1 is obtained at the output terminal of the superimpose fader circuit 24.

The recorded video signal S1 is supplied to the recording circuit 32 through the recording switching circuit 31, and is recorded on the video tape 36 of the video cassette 35 by the magnetic head 34 through the electromagnetic conversion circuit 33 in the recording mode.

In the reproduction mode, the video signal recorded on the video tape 36 is picked up by the reproduction circuit 37 through the magnetic head 34 and the electromagnetic conversion circuit 33 in sequence, and is picked up by the reproduction switching circuit 38.
is sent to the video signal processing section 2 as a reproduced video signal S2.

This reproduced video signal S2 is further converted into a video output signal S3 by the video processing circuit 40 via the output selection circuit 39, and is displayed on the display screen 4A of the monitor 4.

Control management data processing CPU of control management data processing section 5
Reference numeral 8 indicates the basic data stored in the basic data memory 43 in the ROM configuration and the basic data in the RAM configuration based on the input/output information signal S4 inputted from the remote controller 6 or the human power information signal s8 inputted from the VTR keyboard 12. By processing the processed data stored in the register 44 based on a clock signal from a clock circuit 45, control information s5 and S6 are sent to buses 9 and 10.

In this embodiment, a card reader 46 is connected to the bus 9, and the control management data processing CPU 8 is connected to the card reader 46.
6, the basic data read from the IC card 47 can be loaded into the register 44.

If it is necessary to notify the user of the processing results obtained by processing data in the control management data processing CPU 8 in this way, the control management data processing CPU 8
us supplies an image display information signal S14 to the video display processor 41 as part of the control information S5, and the image display information signal S14 causes the video RAM 4 to
By supplying the image display signal S15 read from 2 to the superimpose fader circuit 24, the image display signal S15 is superimposed on the video signal S16 supplied from the manual selection circuit 23, thereby producing a superimposed output. By supplying the signal S17 to the video processing circuit 40 through the output selection circuit 39, a video is created by superimposing an image signal consisting of letters, characters, diagrams, etc. on the video signal on the display screen 4A of the monitor 4. The screen is configured to allow interaction with the user by displaying the .

In this embodiment, when an image consisting of letters, characters, diagrams, etc. is displayed on the display screen 4A of the monitor 4, the control management data processing CPU 8 transmits an image signal representing the same image from the remote control transmitter/receiver 7. Input/output information signal S
4 is supplied to the remote controller 6, so that the same image as the display screen 4A of the monitor 4 is displayed on the display screen 6A of the remote controller 6.

Here, the control management data processing CPU 8 uses the control information S5
As part of this, the write management data S25 related to the recording and playback operations of the video tape recorder main body 3 is passed through the image recording encoder 51, and then sequentially through the recording switching circuit 31, the recording circuit 32.1i, and the magnetic conversion circuit 33. and recorded on the video recording track of the videotape 36,
Furthermore, when the management data written in the video recording track is read through the 1i magnetic conversion circuit 33, the reproduction circuit 37, and the reproduction switching circuit 38, it is read out through the image recording decoder 52 as read management data 326 and sent to the bus 9. It is designed so that it can be imported via.

In addition, in this embodiment, the control management data processing CPU 8 sends write management data S27 similar to the write management data 325 given to the image recording encoder 51 to the electromagnetic conversion circuit 33 through the audio recording encoder 53. The data is supplied to the audio recording track of the video tape 36 via the magnetic head 34, and the management data recorded on the audio track of the video tape 36 is transferred to the electromagnetic conversion circuit 33 via the magnetic head 34 in the playback mode. By reading out the data from the audio recording decoder 54, it is taken into the control management data processing CPU 8 as successive processing data 32B.

(G2) Functional Block Control of Video Tape Recorder The data processing CPU 8 controls the video tape recorder as a whole according to the functional blocks shown in FIG.

That is, when the CPU receives a command input from the keyboard 12, it functions as an interwoven processing means in block BKI, and then functions as a system scheduling means and a database holding means in block BK2. At this time, the system schedule means and database holding means communicate with the timer reservation database holding means of block BK3 while managing the time series of the entire system, and perform the functions as an artificial intelligence module indicated by block BK4 and block BK5. and the function as an application processing means shown in FIG.

In the artificial intelligence module BK4, the CPU 8 determines the content of the command manually written in natural language according to the input of command items expressed in natural language by the natural language system BK4A.

Then, the habit learning inference system BK4B learns and infers the user's habits based on the manner of the command contents in the natural language, and a habit database is created by the habit database creation system BK4C.

In the application processing means BK5, the CPU 8 uses the management database module B by the module processing means BK5A.
K5B, user preference module BK5C, system setting module BK5D and timer reservation module BK5
Executes the function of E.

At the same time, the CPU 8 in the general processing means BK5 executes message display processing in the message system BK5F and display processing on the monitor 4 in the monitor block BK5G.

Such artificial intelligence module BK4 and application processing means BK
5, the CPU 8 executes timer reservation packet processing, flag processing, etc. in the common data area processing block BK6.

The processing in the applied processing means BK5 is performed by the input/output driving means B.
It is connected to the video tape recorder body 3, monitor 4, remote control transceiver 7, and remote control controller 6 as external devices via K7.

(G3) Video tape recording format As shown in FIG. 3, the video tape 36 has video recording tracks TA having mutually different azimuth angles, which are shaped along the head scanning direction that diagonally crosses the tape running direction a. and TB so as to be sequentially adjacent to each other in the tape running direction a, and a control signal (CTL) is applied to the outer edges of the entry side ends of the video recording tracks TA and TB along the longitudinal direction of the video tape 36. A recording track TCT is formed to record the control signal CT, and audio recording tracks CHI and CH2 for two channels are formed at the edge of the video tape 36 on the exit side.

A management database video track recording area F avv is provided at the beginning of the recording start of the video tape 36 over a predetermined number of video recording tracks TA and TB.
Following AVV, a video signal recording area FVD is formed in which video signals for one field are recorded in each of the video recording tracks TA and TB.

Management data DAv having the structure shown in FIG. 4 is recorded in each of the recording tracks TA and TB belonging to the management database video track recording area FAVV.

Furthermore, a management data base audio track recording area FAVA is formed at a predetermined track position, for example, in the tape top portion of the audio recording tracks CHI and CH2. Management data DAv having the configuration shown is recorded.

The management data DAv is such that a volume information block DVM and a program information block DPI are sequentially recorded in that order from the head side of the recording track.

The volume information block D- is management information regarding the video cassette 35 installed in the video tape recorder body 3, and is recorded as volume information Dv- of 135 [by 13 minutes] consisting of the item Al-A15, as shown in FIG. be done.

The information in item A1 represents the "format version",
By recording the version number of the management data DAV using 1 [byte] of data, the video cassette 3
5 is installed, by identifying the format version, the old version management data DAv
Set up your system to handle this even if

Item A2 represents the "number of repeated recordings", for example l [
management data DAv for the management database audio track recording area FAVA by the data of [byte]
When recording, record the number of times it is repeated. In this way, the number of times the management data DAv was recorded using the audio signal recording method is recorded as reference material.

Item A3 represents the "number of screens used", for example 1 [byte]
The number of screens used when recording the management data I) av on the video cassette 35 (i.e., the number of recording tracks occupied by the management database video track recording area F AVV is recorded, thereby recording the video signal recording area F'vo The system is designed to be able to determine the position of the first track.

Item A4 represents the "number of used programs" and records the number of programs reserved or recorded on the video cassette 35 and the presence or absence of recording space using, for example, 1 [byte] of data.

In this embodiment, the 0th to 6th bits allow the number of reserved or recorded programs to be recorded up to 32 programs, and the 7th bit indicates whether there is recording space (represented by a logical 0). ) or there is no recording space (represented by a logic "1"). By doing this, even if the maximum number of used programs is less than 32 programs depending on the tape length of the video cassette 35 or the length of reserved or recorded programs, if there is no recording space, this can be used as the seventh program. can be confirmed by a bit of

Item A5 represents "date and time of generation," and records the date and time when the management data DAV was first written into the video cassette 35 using, for example, 5 [bytes] of data.

In this example, the 1st, 2nd, 3rd, 4th, and 5th bytes each contain 1 minute, hour, day, month, and year in two-digit binary IO numbers. The age of the video cassette 35 can be determined based on the volume information DVD, which is an item indicating the date and time of generation.

The item hole 6 represents "date and time of update", and records the date and time when the management data I) av was changed using, for example, 5 [bytes] of data.

In this embodiment, the update date and time data are the first, second, third,
The 4th and 5th bytes are sequentially ``minute'', ``hour'', and 1 day''.
, "month" and "year" are recorded in binary coded decimal notation, thus making it possible to confirm when the currently used management data DAv was changed.

Item A7 represents the "system volume number." For example, if the video cassette 35 is a so-called series product, the series number is recorded using 8 [bytes] of data, and this records the series number of the video cassette 35 that is currently installed. The video cassette 35 that has been recorded is a series product and its series number can be displayed on the monitor by adding a system volume number to the recording reservation information held by the video tape recorder main body 3. This allows the user to be informed of the video tape 36 to be reserved for recording.

Item A8 represents "screen display color", for example 2 [byte]
For example, when displaying a list, etc., the display color can be specified based on the data, and when the user attaches the video cassette 35 and displays the list display screen, the user It is designed so that it can be immediately determined which cassette is installed.

Item A9 represents "various flags", for example 1 [byte]
This data allows multiple types of flag data to be recorded.

In this embodiment, the user can record a "record prohibition" flag in the O-th bit, thereby allowing the recorded contents of the video cassette 35 to be saved.

Furthermore, a "formatted" flag can be entered by the system in the first bit, thereby making it possible to confirm whether or not the entire recording area of the video tape 36 has been completely formatted.

Furthermore, the second and third bits allow the system to input an "address mode" flag indicating the type of program end address, so that even if the program end address is recorded in a different mode by the video cassette 35, This can be reliably detected.

Item AIO represents "type of video cassette" and is designed to record the tape length and tape type using, for example, 2 [byte] data.

In this embodiment, the first byte can be automatically set by the system, whereas the second byte can be set by the user as necessary. Thus, when the video cassette 35 is loaded, by checking the type and length of the tape, it is possible to check the hub diameter to be used.

The item All represents "password", for example 2[by1
] data allows the user to register a password expressed in a four-digit binary coded decimal number.

Thus, when the user inserts the video cassette 35 in which the password has been registered into the video tape recorder body 3,
If the user cannot correctly enter the password registered in the video cassette 35, the video cassette 35
This prohibits the recording and playback of video tape 36.
The contents of the file are not visible.

Item A12 represents a "user volume number", and is configured so that the user can record a video cassette organizing number, that is, a volume number, on the video cassette 35 according to his/her preference, using, for example, 2 (byte) data, and thus this implementation is possible. In the example, the number is O~6400 in binary coded decimal notation.
In addition to being able to assign a volume number within the range of 0, the user volume number can be displayed on the monitor by adding the user volume number to the recording reservation information that the video tape recorder main body 3 has. This has been done so that you can be informed.

Item A13 represents the "playback order", and for example, the playback order of up to 32 programs can be recorded as needed using 32 [bytes] of data, so that in the so-called program playback mode, the playback order of up to 32 programs can be recorded from the first hide. Third
Programs recorded in that order up to the second byte can be sequentially specified and played back.

Item A14 represents "recording order", and for example, 32 [bytes] of data can be used to store up to 32 recording positions in 32 recording order positions.
It is possible to record program numbers.

In this way, in so-called program playback, programs with program numbers recorded in that order from the first byte to the 32nd byte can be played back in sequence.

Item A15 represents "volume label", for example 40
The [byte] data allows the user to label the video cassette 35 with a title, etc. as necessary, and also adds a volume label to the recording reservation information held by the video tape recorder body 3. This allows the video tape 36 to be displayed on the monitor, thereby informing the user of the video tape 36 to be reserved for recording.

In this embodiment, a maximum of 40 characters can be recorded when the ASCII code is used, and a maximum of 20 characters can be recorded when the 5-JIS code is used.

On the other hand, as shown in FIG. 4, the program information block DPI includes the sixth
It is composed of program information DPIIX as shown in the figure.

Item B1 represents a "start address", and for example, the start address value of each program is determined based on the start address of the video tape 36 using 3 [byte] data, and the program is recorded in the video signal recording area FVD of the video cassette 35. written by the system after the

In this example, the address value modes are time mode (“seconds”, “minutes”, and “hours” are expressed in binary 1O base) and program number mode (VASS (VH3), video
o address signal 5earch
(represents the program number based on the VHS standard) and control signal mode (CTL (β) based on the standard
(expressed by the number of pulses) can be selectively used.

Item R2 represents "end address" and records the program end address value from the beginning position of the videotape 36 using, for example, 3 [byte] data.

In this embodiment, the program end address value can select the time mode, program number mode, and control signal mode in the same way as the program start address value.

Item B3 represents "various flags", for example 1 [byte]
Information representing the handling status of the program information is recorded using the data.

In this example, "recorded information" (indicating whether or not the program is being recorded) is written in the Oth bit, and "recording end status information" (when recording is finished) is written in the first and second bits. ) is written in the 3rd bit, a ``recording permission flag'' (indicating whether recording should be prohibited or not) is written in the 4th bit, and ``saw flag information'' is written in the 4th bit.
(indicating whether the user has watched the recorded program at least once).

Item B4 represents the "system program number", for example l[
Byte] data records a series of serial numbers assigned by the system to the program.

In this example, "0" and "l" are sequentially displayed from the beginning of the tape.
, "2", etc. are written as the system number.

Item B5 represents "program number", for example, 1 [byte]
The data allows the user to manually determine the number of times a series program (for example, a drama series) has been watched.

Item B6 represents a "category code", and records the category of the program content (eg, sports, news, drama, etc.) using, for example, 1 [byte] of data.

Item B7 represents "input source", and records the input source representing where the program was obtained from, for example, by 1 [byte] of data.

In this embodiment, the channel number selected by the tuner 21 (FIG. 1) and the external line number of the external line video signal S12 are written as information representing the source content.

Item B8 represents "recording/operation mode", for example 1 [
Byte] data is used to write the recording mode to the video cassette 35 and the operation mode at the time of recording.

In this embodiment, the recording mode is video cassette 3.
5 is recorded by a video tape recorder of "β method", "rVH3 method", or "8 mm video method", the recording mode is written. ”, type of “βm mode”, and in the case of VHS system, write “SPβ
method, write the type of “LPβ method, rEP method”,
Also, for 8mm video format, write the type of "SP all mode, rLP mode", and write the type of operation mode during recording, such as "normal recording mode", "mode in which only the reference signal is written in advance", etc. is being done.

Item B9 represents "recording start time", and records the start time of a reserved or recorded program using, for example, 5 [bytes] of data.

In this example, the user writes "minute", "hour", "day", "month", and "year" in the first, second, third, fourth, and fifth bytes in binary coded decimal notation. It is done like this.

Item BIO represents "recording end time" and records the end time of a reserved or recorded program using, for example, 2-byte data.

In this embodiment, "minute" and "hour" data are written in the first and second bytes in binary coded 1O base.

Item Bll represents "scheduled recording control information", for example, 10
The video tape recorder main body 3 (FIG. 1) performs a scheduled recording operation using data in (byte) when scheduled recording is executed, and also records information for controlling peripheral equipment to be operated in response thereto.

Item B12 represents "title j," and the user writes character information representing the title of the program using, for example, 40 [bytes] of data.

(G4) Video tape recorder setting processing CPU 8 uses control management data processing unit 5,
The video signal processing section 2 and the video tape recorder main body 3 are processed by the processing program RTO shown in FIGS. 7, 8, and 9.
By processing according to RTI and RT31, it is controlled to the operating state specified by the user.

In the case of this embodiment, the remote controller 6 has a display screen 6A having a touch panel on a liquid crystal panel on the operation panel on the surface of the case, as shown in FIG.
When designated items are displayed as a list on the display screen 6A, by directly pressing and clicking each displayed item, it is possible to manually input a designated signal regarding the displayed item. In addition, after specifying a predetermined display item by moving the cursor displayed on the display screen 6A using the four-direction cursor keys 6B, a specification signal regarding the display item is input by operating the execution key 6C. It is made to be obtained.

Furthermore, the remote controller 6 has a normal operation command key 6D, a menu display command key 6E, a management data mode command key 6F, and reservation 1 and reservation 2 operation mode designation keys 6G and 6H. In contrast, the operation mode of the video tape recorder 1 can be specified.

Step SP of the human information processing program RTO in Figure 7
In I, the CPU waits for the power-on operation, and when a positive result is obtained, it is determined in step SP2 whether or not the power-on operation is the first time, and if it is the first time, steps SP3, SF3, and By sequentially executing the processing of SF3, the message "Setting the time" is displayed on the display screen 4A of the monitor 4 and the display screen 6A of the remote controller 6, and then the current time is set using the system setting operation mode. A message "Time has been set" is displayed on display screens 4A and 6A.

In this way, the video tape recorder 1 enters the standby state for commands with the current time set.

This command standby state continues to be maintained even when a negative result is obtained in step SP2, and thus, in the command standby state, "management database", "system settings", "favorite settings j" and "timer reservation 1" You can now selectively control the eyes.

In fact, in this command standby state, when the menu display mode designation key 6E is operated on the remote control controller 6 (or keyboard 12), the CPU 8 displays "management database", "system settings", etc. on the display screens 6A and 4A. By displaying the operation mode designations of ``favourite setting'' and ``timer reservation,'' the user can specify one of the operation modes by a click operation.

The "management database" mode is the management database video track recording area F of the video tape 36 (FIG. 3).
An operation mode in which management data DAv (Fig. 4) is recorded in the AVV or management data audio track recording area FAvA, or the recorded management data I) av is used to drive and control the video tape recorder main body 3. Then, when the "Management Database" item among the menu display items is clicked in step SP6, the CPU 8 sets the video cassette 35 containing the tape on which the management data DAv is recorded (this is called a management data tape) in step SP7. If it is set, after executing various processes of the management database in subroutine RTl, step SP8
In step SP9, it is determined whether the contents of the management database have been changed or not, and if the contents have been changed, the management database video track recording area Favv or the management data audio track recording area FAVA is determined in step SP9.
Executes processing such as rewriting the recorded data with the changed management data.

In this way, the processing for the management database is completed, and in step 5 PIO it is determined whether the power has been turned off or not. When a negative result is obtained, the state returns to the above-mentioned command standby state, and when a positive result is obtained, step The human information processing program is terminated at SPH.

When the CPU enters the various processing routines RTl of the management database described above, as shown in FIG.
1, after displaying the management data list on the display screen 6A of the remote controller 6 and the display screen 4A of the monitor 4, the system enters a command standby state.

At this time, "Label", "Reservation Cancellation", "
"Auto play", "Manual reservation", "Program information confirmation"
and "Management Data Reservation" items are displayed, and this makes it possible to specify that one item.

Here, the label j item represents the operation mode that can be set by selecting one of the volume information or program information included in the volume information block DVD or program information block D□ (Figure 4) of the management data DAV. , in step 5P22, ``When label j item is clicked, ``password,'' ``recording mode,'' ``tape type,''``category,'' and ``title j item are displayed on the display screen to display that one item. You will be able to choose.

Here, when the user clicks on the "Password" item,
In step 5P23, the cpus allows the user to rewrite the password data recorded in the item All of the volume information Dv□ (FIG. 5).

Similarly, in step 5P24, the CPU 8 can designate the recording/operation mode recorded in item B8 of the program information DP111 (FIG. 6) and write the recording mode data therein.

Further, the CPU 8 is configured to be able to rewrite the tape type data among the data representing the type of video cassette recorded in the item AIO of the volume information Dv14X (FIG. 5) in step 5P25.

In addition, the CPU 8 in step 5P26 selects the program information D□.
The category code data recorded in item B6 of X (Fig. 6) can be rewritten.

Further, in step 5P27, the CPU 8 reads the program information D.
The title data recorded in item B12 of □8 (Fig. 6) can be rewritten.

In this way, after rewriting the data of the "Password" item to "Title J" item in steps 5P23 to 5P27, when the "end" item is specified in step 5P28, cpus ends the processing of the management database and executes the process in step 5P29. Then, the process returns to the management database processing loop shown in FIG. 7 and enters the process of step SP8.

On the other hand, in the command standby state where the management data list is displayed in step 5P21 of FIG. Cancel all program reservations.

Also, when the user clicks on the "Autoplay" item, C.
In step SP31, P tJ 8 reproduces the reproduction order data of item A13 of the volume information DVMX (FIG. 5) in a predetermined order and rewrites it as necessary.

When the user clicks on the "manual reservation" item, the CPU 8 sequentially accepts manual settings for a predetermined number of programs and inputs them as management data.

When the processing of steps 5P30, SF31 and 5P32 is completed, the CPU 8 executes the steps 5P28 and 5P29 described above.
and returns to the management database processing loop (FIG. 7).

Further, when the CPU 8 is in the standby state for a command to display the management data list in step SP21 of FIG.
enters the process of step 5P33, switches the display screen display in step 5P34, and proceeds to step 5P35.
, or 5P36, 5P37, or 5P3B, volume information Dv,X (Figure 5) and program information DP
RX (Figure 6) "Recording permission" item, "See 91
The display mode becomes such that the recorded contents of the item, "Category" item, and "Title" item can be confirmed or rewritten.

In this example, "recording permission" item, "seen flag"
A predetermined pictorial display, that is, a character, is used as the data for the item, "category" item, and "title" item, which makes it possible to check and change information recorded for multiple reserved programs using a relatively small display area. It has been made possible to do so.

When the processing of steps 5P35 to SP3B is completed, the CPU 8 returns to the management database processing loop (FIG. 7) via steps 5P2B and 5P29.

Furthermore, when the user clicks on the "Management Data Reservation" item in the command standby state where the management data list is displayed, the CPU enters the management data subroutine RT3, which forms part of the processing procedure shown in FIG. Management data reservation processing procedure R for switching reservation modes such as
Execute T31.

At this time, the cpus causes the user to select the timer reservation mode in step SP41.

In this embodiment, as shown in FIG. 11, as a list of specified items that can be presented to the user for specifying and selecting specified items of management data, words consisting of word input items that express specified items using natural language. A designated item list TBL and a graphic designated item list consisting of graphic input items that represent designated items using graphic elements such as Roman letters, numbers, and symbols as usual are prepared, and the CPU 8, in step SP41, The user is allowed to select and specify either verbal input or graphic input as the reservation screen to be used.

As a result, if the word skill is selected, the CPU 8 moves to step SP42, displays the word designation item list TBL on the display screen, and takes into the register 44 the data corresponding to the word skill item specified by the user.

Conversely, if graphic input is selected, cp
us moves to step SP43, displays a graphic designation item list on the display screen, and stores data corresponding to the graphic input item specified by the user in the register 44.
Incorporate into.

In this way, when the user's designated manual operation is completed, the CPU 8
ends the management data reservation input process and returns to the management database processing loop shown in FIG.

At this time, the CPU 8 subsequently displays "Register j item,""Change" item, and "Inquiry j item" on the display screen, and proceeds to step SP.
51, SP52, and 5P53, when the user clicks on the "registration" item, "change" item, or "inquiry" item, the process to execute this starts.

In order to process the clicked item, the CPU 8 is configured to display a calendar reservation table, a weekly reservation table, and a daily child schedule according to the user's selection in steps 5P54, 5P55, and 5P56, respectively. The start time and/or end time of a reserved program is written on the calendar reservation table, weekly reservation table, or daily child schedule.

After completing this process, the CPU 8 executes the above-mentioned step 5P2.
At step B, the processing program for the management database is ended, and the process returns to the management database processing loop (FIG. 7) from step 5P29.

The above is performed in step S in the initial command standby state shown in FIG.
In P6, ``By clicking on the management database j item, you can record, change, and record management data on videotape.
This is a confirmation process, but if the user clicks on any other designated item in the initial command standby state, i.e., the ``first system settings'' item, the ``favorite settings'' item, or the ``timer reservation'' item, The CPU 8 executes processing for setting operating conditions for each part of the video tape recorder 1.

That is, in step SP61 of FIG.
When you click on "System Settings", the display screen displays the "Current time" item, "Sleep timer item", "Recording mode" item, "Noise cancellation" item, "rBS online" item, "Auto set" item, and "Tuner preset" item. ” item and “Line input” item are displayed, and these items can be selected in steps 5P62.5P63.5P64.5P6 respectively.
By clicking on 5.5P66.5P67, SP6 B or 5P69, the operating conditions of each part of the system can be set. When the setting process is finished, the CPU 8 finishes the process of the system setting process loop and performs the above-mentioned process. Step 5 Move to PIO.

On the other hand, when the CPU 8 clicks on the "favorite settings" item in step SP71, "screen display j item,""managementdatabase" item, "user set" item, "character" item, "timer reservation" item is displayed on the display screen. '' item, ``User Level'' item, ``Message'' item, and ``Audio'' item are displayed on the display screen, and these items are respectively set in step 5P72.5P73.5P74.5P75.
When clicked on 5P76.5P77.5P78 or 5P79, the CPU 8 executes the process for each item, and when the process is completed, the process moves to step 5PIO described above.

Furthermore, in the initial command standby state, when the user clicks on the first timer reservation in step SP81, the CPU 8 displays the "Register" item and the "Change" item on the display screen.
Display the item and "Inquiry" item, and the user can proceed to step 5P.
82. When you click on each item on 5P83 or 5P84, the "Calendar reservation table" item, "1 week reservation table" item, and "1 day child schedule j item" are displayed on the display screen.Next, Part 1 If the user specifies one, CP
U8 makes a calendar reservation table, a weekly reservation table, or 1 in steps 5P85, 5P86 or 5P87 respectively
By displaying the Japanese schedule, the user can make a reservation for a program using the reservation table.

When the CPU 8 has thus completed the processing of the timer reservation processing loop, it moves to the above-mentioned step 5 PIO.

In this way, the CPtJ8 can reliably control the video tape recorder main body 3 based on the input data manually inputted by the user by executing the manual information processing program RTO shown in FIG.

(G5) Recording permission/prohibition processing operation Management data DA recorded in the management database audio track recording area FAvA or the management database video track recording area F Avv of the video tape 36
If the "recording prohibition flag" in the "various flags" provided in item A9 of the volume information DVMX of v is specified by the user to be in a recording prohibited state, the CPU 5 The video tape 36 of the video cassette 35 can be controlled to be in an erasure inhibited state in priority to the state of the accidental erasure prevention claw.

That is, when the user performs recording or recording reservation operation of the video tape recorder 1, the control data processing CPU 8 detects the state of the claw for preventing accidental erasure of the loaded video cassette 35 via the mechanism control CPtJ11, Recording permission/prohibition processing routine R shown in FIG.
T71 is executed to determine whether or not it is okay to record.

That is, this recording permission/prohibition processing routine RT7■ shows the recording permission/prohibition processing operation in the input information processing and management database setting processing shown in FIGS. 7 and 8, and in step 5P140, step 5P35 shown in FIG. By executing the processing operation, the management data I) av recorded on the video tape 36 is read out, and the volume information D VM of the management data DAV is read out.
It is determined whether or not a "recording prohibition flag" included in "various flags" from among X is in a prohibited state.

If a positive result is obtained here, this means that a new program must not be recorded on the videotape 36 (in other words, the program recorded on the videotape 36 must not be erased). represents the CPU
8 controls the video tape recorder body 3 to a recording inhibit state in the subsequent step 5P141, and then proceeds to step 5P.
At step 144, the process proceeds to step 5P2B shown in FIG. 8, thereby terminating the processing routine.

On the other hand, if a negative result is obtained in step 5P140, this means that a new program can be recorded on the videotape 36 (that is, a program recorded on the videotape 36 can be deleted). ), and at this time the CPU 8 executes step 5P142.
Moving on to the next step, the state of the claw to prevent accidental erasure provided on the casing of the video cassette 35 is either an erasure prohibition letter M (that is, the claw is broken) or an erasure permission letter M (that is, the claw is broken). If it is determined that the erasure is prohibited, the CPU 8 proceeds to step 5P141 described above and controls the video tape recorder main body 3 to be prohibited from recording.

On the other hand, if it is determined that erasure is permitted, the CPU
8, the process moves to the next step 5P143 to control the video tape recorder body 3 to a recording permission state, and then moves to the process of step 5P2B shown in FIG. 8 in the next step 5P144, thereby terminating the processing operation.

In this way, when the record prohibition flag of the management data DAv recorded on the video tape 36 is in the record prohibit state, the cpus changes the state of the accidental erasure prevention claw provided on the casing of the video cassette 35. Regardless, the video tape recorder main body 3 can be controlled to a recording prohibited state.

Here, when determining the state of the recording prohibition flag in step 5P140, the CPU selects the recording permission/recording permission flag shown in FIG.
A prohibition determination processing routine RT81 is executed.

That is, the CPU 8 activates the video tape recorder set 35 loaded in the video tape recorder main body 3 in step 5P150.
The management data D0 recorded on the video tape 36 is read out, and in the following step 5P151, the "recording prohibition flag" included in "various flags" from the volume information D□× of the management data DAv is set to the prohibited state. Determine whether it is.

If a positive result is obtained here, this means that the program recorded on the videotape 36 must not be erased (that is, the program must not be newly recorded on the videotape 36). CP
In the following step 5P152, U8 checks the "recording permission" of the video tape recorder main body 3, which is provided for each program recorded on the video tape 36.
Change the internal flag from the initial state of "recording allowed" to "
In the following step 5P153, the recording prohibited state is displayed as a picture on the display screens 4A and 6A.

If a negative result is obtained, this means that a new program may be recorded in the area where the program is recorded on the videotape 36 (i.e., the program may be newly recorded on the videotape 36).
The CPU 8 jumps to the following step 5P152 and displays a pictorial display indicating the recording permission state on the display screens 4A and 6A in step 5P153.

Thus, the cpus displays on the display screens 4A and 6A whether or not all programs recorded on the video tape 36 of the video cassette 35 loaded are allowed to be erased, and if erasing is prohibited, the corresponding Even if the user attempts to record a new program on the videotape 36, this is not executed.

Thus, the CPU 8 moves to step 5P154 and executes step 5P1 of the recording permission/prohibition processing routine RT71 described above.
Return to 40.

Therefore, the user can check on the display screens 4A and 6A whether the management data DAv of the video tape 36 of the loaded video cassette 35 is in the recording permission state or in the recording prohibition state, and if it is in the recording permission state. You can record a new program.

According to the above configuration, the management data D
By specifying the recording prohibition state (that is, the erasure prohibition state) using Av, it is possible to specify recording prohibition at the same time as performing operations such as recording reservation using the management data D0, which further improves usability for the user. Erroneous erasure can be reliably prevented.

(G6) Other embodiments (1) In the above embodiment, when the state of the claw for preventing accidental erasure provided on the casing of the video cassette 35 is checked when the recording prohibition flag is in the recording permission state. However, the present invention is not limited to this, and recording permission or recording prohibition may be designated based solely on the state of the recording prohibition flag, if necessary.

In this case, the recording permission/prohibition processing routine R shown in FIG.
By executing T91, it is possible to select a processing mode that takes into account a claw for preventing erroneous erasure or a processing mode that depends only on the state of the recording prohibition flag.

In other words, the control management data processing CPU 8
In step 5P160 of the prohibition processing routine RT91, a processing mode 1 that takes into account a claw for preventing accidental erasure or a processing mode 2 that selects recording permission or prohibition based only on the state of the recording prohibition flag is selected according to the user's instructions.

If processing mode 1 is selected here, the CPU 8 continues in step 5P161SSP162.5P163.5P164
Step 5P140.5P141.5P mentioned above in
142.5 After executing the same process as the process of P143 to control the video tape recorder body 3 to the recording permission or recording prohibition state, the process routine RT91 is ended in step 5P165.

On the other hand, when processing mode 2 is selected in step 5P160 described above, the CPU 8 operates in step 5P166.
The process moves to step 5P140, and it is determined whether or not the record prohibition flag is in the record prohibition state by a process similar to the process in step 5P140 described above. If a positive result is obtained, the process proceeds to step 5P16.
After moving to step 2 and controlling the video tape recorder main body 3 to a recording inhibited state, the process moves to step 5P2B shown in FIG. 8 in step 5P165, thereby terminating the processing routine RT91.

If a negative result is obtained, the CPU 8 moves to the above-mentioned step 5P164 to control the video tape recorder body 3 to the recording permission state, and then moves to the process of step 5P2B shown in FIG. 8 in step 5P165. The processing routine RT91 ends.

Therefore, when processing mode 2 is selected, the CPU allows the video tape recorder main body 3 to record only based on the state of the record prohibition flag, regardless of the state of the accidental erasure prevention claw provided on the housing of the video cassette 35. i.e. erasure permission)
Or, it can be controlled to prohibit recording (that is, prohibit erasure). For example, even if the video cassette 35 is in the erasure-prohibited state because the claw for preventing accidental erasure is broken, By changing the recording prohibition flag of the management data Dav recorded on the video tape 36 of the video cassette 35 to a recording permission state,
Programs can be recorded on the videotape 36.

(2) In the above-described embodiment, a case has been described in which the state of the recording prohibition flag is visually displayed, but the present invention is not limited to this, and this may be indicated by audio or the like.

(3) In the above-mentioned embodiment, the volume information block DVM and the program information block I)pm were written in that order from the head position of the recording track as the configuration of the management data DAv, but instead of this, the block arrangement Various changes may be made, such as changing the order or, depending on the case, dividing them into smaller pieces and mixing them.

(4) In the above embodiments, the case where the present invention is applied to a video tape recorder has been described, but instead of this, it can be applied to various other types of recording and playback, such as when recording audio signals like a so-called radio cassette player. The present invention can also be applied to devices in the same manner as described above.

H Effects of the Invention As described above, according to the present invention, erasure permission information or erasure prohibition information is recorded as management data on a recording medium, and recording of a program is permitted or recorded on the recording medium based on the erasure permission information or erasure prohibition information. By prohibiting this, user-friendliness can be further improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the overall configuration of a video tape recorder according to the present invention, FIG. 2 is a block diagram showing its functional blocks, FIG. 3 is a route map showing the recording format on the video tape, and FIGS. 6 is a route map and chart showing the configuration of the processing database, FIG. 7 is a flow chart showing the input information processing procedure of the video tape recorder, FIGS. 8 and 9 are flow charts showing the processing procedure of the management database, and FIG. 10 is a flow chart showing the processing procedure of the management database. The figure is a front view showing the configuration of the remote controller, Figure 11 is a diagram showing the configuration of the word specification item list, Figure 12 is a flowchart showing the recording permission/prohibition processing procedure, and Figure 13 is the recording permission/prohibition processing procedure. A flowchart showing the prohibition judgment process, and FIG. 14 is a flowchart showing another embodiment. 1...Video tape recorder, 2...
Video signal processing unit, 3...Video tape recorder body, 4...Monitor, 5...Control management data processing unit, 6...Remote control controller , 8... Central processing unit for control management data processing (CPU), 12... Keyboard, 3
2... Recording circuit, 33... Electromagnetic conversion circuit, 35... Video cassette, 36...
・Video tape, 37... Playback circuit.

Claims (1)

[Claims] A recording/playback system in which management data is recorded in a management database recording area provided in a recording track on a recording medium, and the program recorded in the recording track is managed using the management data. The device records erasure permission information or erasure prohibition information as information on the recording medium in the management database recording area, and erases or prohibits erasure of the program on the recording medium based on the erasure permission information or erasure prohibition information. A recording/reproducing device characterized by: